5 × 128111

Prime Factor Structure

Factorization String 5 × 128111

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 768,672

Proper Divisor Sum 128,117

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #640531 ← → #640579

1 5 128,111 640,555

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

640,555 1,921,666 960,833 2,882,500 1,441,250 720,625 2,161,876 1,080,938 540,469 1,621,408 810,704 405,352 202,676 101,338 50,669 152,008 76,004 38,002 19,001 57,004 28,502 14,251 42,754 21,377 64,132 32,066 16,033 48,100 24,050 12,025 36,076 18,038 9,019 27,058 13,529 40,588 20,294 10,147 30,442 15,221 45,664 22,832 11,416 5,708 2,854 1,427 4,282 2,141 6,424 3,212 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.